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281M Marine Heat Transfer Oil

Marine Heat Transfer Oil is a non-corrosive, non-fouling, paraffinic heat transfer fluid that provides fast and efficient heat transfer. It’s designed for use open loop or closed system applications with expansion tank temperatures up to 600 °F (315 °C).

Marine Heat Transfer Oil has an operability temperature of 20 °F (-7 °C), with a maximum film temperature of 600 °F (315 °C). It provides flash and fire points significantly above 400 °F (204 °C) and auto-ignition temperature above 608 °F (320 °C).

Marine Heat Transfer Oil provides exceptional thermal and oxidation performance. This allows for significantly longer lubricant life, and it enables resistance to deposits and buildups from forming in high temperature operation. To further enhance lubricant life, Heat Transfer Oil remains highly stable in the presence of humidity, moisture and water. 

Schaeffer’s heat transfer oil delivers reliable performance in various heat transfer systems, climates and cargo. Marine Heat Transfer Oil is non-corrosive to system parts, and it’s compatible with petroleum-based heat transfer oils, all types of seals, materials of construction and finishes commonly used in heat transfer systems.

Performance Benefits

  • Long service life for proven trouble-free operation.
  • Low volatility characteristics, which results in lower makeup requirements, eliminates vapor lock in circulating pumps and reduces the possibility of cavitation.
  • High thermal efficiency for rapid and efficient transfer of heat.
  • Low vapor pressure at elevated temperatures and high boiling point to prevent pressure buildup.
  • Non-fouling on degradation.
  • Virtually odorless and essentially non-toxic.